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Probability 13.4

Problem

A furniture factory makes a 4-piece desk. Quality control at the factory has randomly sampled numerous desk sets and determined the number of damaged pieces in each set.
The table below is a partially completed probability distribution for the random variable X, where X represents the number of damaged pieces in a randomly selected desk set from this factory.
X01234
P(X)0.750.140.070.03?
What is the probability that a randomly selected desk set contains exactly 4 damaged pieces?
P(X=4)=
  • Your answer should be
  • an exact decimal, like 0.75